the moore elementary school pta is organizing the event set to take place at a park from 6:00 to 9:00 tonight. people are encouraged to bring notes and pictures. they will be sent to newtown, connecticut. >>> we are learning more about the gunman who opened fire in connecticut. friends of adam lanza and his mother say he was intelligent, his mother said that he did have a mental disability. cbs 5 reporter cate caugiran is in the newsroom with more. >>> reporter: cbs news spoke with people who knew adam lanza. one person claimed lanza's mother gave him an odd warning about her son. now, a man who baby sat for the family when adam was about 10 said nancy lanza told him to supervise her son at all times and never turn his back on him. former classmates remember the gunman as bright but painfully awkward. lanza was taking classes at western connecticut state university at the same time he was in high school. but he was also homeschooled by his mother, who told friends he had asperger's syndrome. >> i know he was on medication and everything. she was you know -- but she homeschooled him at